{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "210894",
    "entityType": "User",
    "nonce": "0x385d6e6ec568fb0eb41b54d3f511f303b3df0ebe7503b367980b85bca42adfc7",
    "signature": "0xf46835197e6e324cc5f9710db3df82b8b14e49ca9bebf80f84992f41970a131033b67fea60c42c31acff5763da261eae11b6181e29e4faeea8b1c148131dfc2c1b",
    "signer": "0x8Cb3EC41a63B7E3feD3B26876Da8e87D5e38322C",
    "userId": "89748371"
  }
}